CN203444807U - Novel flexible multi-core fireproof ready-made-branch cable with sheath - Google Patents
Novel flexible multi-core fireproof ready-made-branch cable with sheath Download PDFInfo
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- CN203444807U CN203444807U CN201320393137.9U CN201320393137U CN203444807U CN 203444807 U CN203444807 U CN 203444807U CN 201320393137 U CN201320393137 U CN 201320393137U CN 203444807 U CN203444807 U CN 203444807U
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Abstract
The utility model relates to a cable, and especially relates to a novel flexible multi-core fireproof ready-made-branch cable with a sheath. The cable comprises a main cable and a branch cable. The cable is characterized in that the exterior of the main and branch cables is provided with a pressure-welding copper sleeve; the exterior of the pressure-welding copper sleeve is sequentially equipped with a fireproof layer, a waterproof layer, and a fireproof heat-insulation layer in a sleeved manner; the exterior of the fireproof heat-insulation layer is sleeved by a fire protection layer; the exterior of the fire protection layer is sleeved by a halogen-free low-smoke flame-retardant polyolefin sheath; the interior of the main cable and the interior of the branch cable are respectively provided with a plurality of copper conductors; and the copper conductors are wrapped by a mica tape. The cable provided by the utility model is convenient to lay and install, is good in bending property, is good in fireproof effect, is low in cost of production, is simple in processing technology, and the like.
Description
Technical field
The utility model relates to a kind of cable, and especially relating to a kind of novel flexible multicore pre-branch that prevents fires has jacketed cable.
Background technology
As everyone knows, in prior art, in high request fireproof cable, the requirement of domestic mineral insulated cable Yao You branch, generally adopts feeder pillar mode.Backbone enters feeder pillar, and branch's core is drawn by feeder pillar, and this kind of mode need to operate at building-site, installs loaded down with trivial details and unreliable.Feeder pillar itself do not prevent fires, non-watertight, fire cannot guarantee that mineral insulated cable continues to maintain the requirement of energising while occurring.The fire-resistant branch cable of plastic insulation is due to its cable body and divide support body without metal tube or can protection mica insulation, and fire resistance can only reach 750 degree 90 minutes, and fire stability is poor; And this kind of cable cannot meet spray and waterproof requirement with a minute support body.
Summary of the invention
The utility model is mainly for the existing above-mentioned technical problem of prior art, provides a kind of laying installation convenience, good bending property, flameproof effect is good, production cost is low, the simple novel flexible multicore of processing technology is prevented fires, and there is jacketed cable in pre-branch.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: there is jacketed cable in a kind of novel flexible multicore pre-branch that prevents fires, comprise leader cable and branch cable, it is characterized in that described leader cable and branch cable are provided with crimping copper sheathing outward, described crimping copper sheathing is arranged with flame retardant coating outward successively, watertight composition, refractory insulating layer, refractory insulating layer is arranged with fireprotection layer outward, described fireprotection layer is also arranged with halogen-free and low-smoke flame-retardant polyolefin sheathed outward, in described leader cable and branch cable, be provided with many copper conductors, many described copper conductors are surrounded with mica tape outward.The main body of the utility model cable and branch cable are on copper conductor, to be wound around fire-resistant isinglass belt as the insulating barrier of cable, and by new material ceramic fireproof composite band as composite fire thermal insulation layer, improve the heat insulation and flameproof effect of cable, adopt embossing copper or stainless steel sheath, improve fireproofing of cable and bending property.During to the structural design of prefabricated branch head, adopt and in crimping copper outside, adopt synthetic mica tape to add ceramic fireproof composite band as fire prevention composite insulation layer, by marine glue belt+ceramic fireproof composite band, add copper sheathing mould comprehensive waterproof fire resistive construction again, copper sheathing mould adopts two symmetric designs, every one-shot forming compacting production technology, more synthetic installation.And in corrosive environment or according to requirements at the copper sheathing mould of cable, squeeze again one deck low smoke halogen-free flame-retardant polyolefin jacket material outward as anticorrosion, flame-retardant layer, while needing, sheath adopts Halogen, low cigarette, fire-retardant polyolefin jacket, improve the environmental-protecting performance of sheath, reach the performance of low-smoke non-halogen flame-retardant, the existing good fire protecting performance of cable of this kind of structure has again good environmental-protecting performance.
As preferably, described mica tape is arranged with ceramic fireproof composite band and stranding band thermal insulation layer outward successively, between described ceramic fireproof composite band and stranding band thermal insulation layer, is filled with high-flame-resistance environment-friendly gasket for packing.
As preferably, described stranding band thermal insulation layer is arranged with waterproof fireproofing layer and fire-retardant overcoat outward successively.Adopt ceramic fireproof composite band as composite fire thermal insulation layer, processing technology is simple.
As preferably, described waterproof fireproofing layer is embossing copper or stainless steel sheath.Adopt embossing copper sheath as fireproofing of cable layer, improve fireproofing of cable and bending property
As preferably, described fire-retardant overcoat is halogen-free and low-smoke flame-retardant polyolefin sheathed.As adopting low smoke, zero halogen polyolefin, needs extrude as fire-retardant overcoat, good flame retardation effect.
Therefore, the utlity model has the features such as laying installation convenience, good bending property, flameproof effect is good, production cost is low, processing technology is simple.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structure partial cutaway view of the present utility model.
Accompanying drawing 2 is another kind of structure cutaway views of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure of description 1,2, there is jacketed cable in a kind of novel flexible multicore pre-branch that prevents fires, comprise leader cable 8 and branch cable 9, leader cable and branch cable are provided with crimping copper sheathing 10 outward, outer flame retardant coating 11, watertight composition 12, the refractory insulating layer 13 of being arranged with successively of crimping copper sheathing 10, the outer fireprotection layer 14 that is arranged with of refractory insulating layer 13, fireprotection layer 14 is outer is also arranged with halogen-free and low-smoke flame-retardant polyolefin sheathed 15, in leader cable 9 and branch cable 9, be provided with many copper conductors 1, the many outer mica tapes 2 that are surrounded with of copper conductor 1.Mica tape 2 is outer is arranged with ceramic fireproof composite band 3 and stranding band thermal insulation layer 5 successively, between ceramic fireproof composite band 3 and stranding band thermal insulation layer 5, is filled with high-flame-resistance environment-friendly gasket for packing 4.Outer waterproof fireproofing layer 6 and the fire-retardant overcoat 7 of being arranged with successively of stranding band thermal insulation layer 5.Waterproof fireproofing layer 6 is embossing copper or stainless steel sheath.Fire-retardant overcoat 7 is halogen-free and low-smoke flame-retardant polyolefin sheathed.
On copper conductor, be wound around fire-resistant isinglass belt as the insulating barrier of cable, and by ceramic fireproof composite band as composite fire thermal insulation layer, improve the heat insulation and flameproof effect of cable, adopt embossing copper sheath, improve fireproofing of cable and bending property.Under normal temperature, the power frequency dielectric strength of fire-resistant isinglass belt is 10MV/m, specific insulation >=1.0 * 1010 Ω m; Ceramic fireproof composite band power frequency dielectric strength is 36MV/mm, and specific insulation >=1.0 * 1012 Ω m the highlyest can heatproof reach 3000 ℃; So the fusing point of copper be 1083 ℃ when its temperature is no more than 1000 ℃, most places be can because of fusing or burning disintegrate, more can not propagate kindling material.Cable performance of the present invention is consistent with normal cable property retention.Surpassing under 1000 ℃ of environment at flame, even after the fusing of outside copper sheath, the ceramic fireproof composite band of the inside can expand rapidly, forms fine and close porous carbon layer, plays good refractory heat-insulating effect; The mica tape of guaranteeing the inside can be not damaged when vibration yet, guaranteed its insulating properties.Adopt said structure, when cable is under flame environment, can be rapidly heat insulation, oxygen barrier, slow down hot conduction, effectively protected core normal power supply.The utility model efficiently solves the easy moisture absorption of magnesium oxide in multicore mineral insulated cable, the problems such as joint length is limited, can guarantee the fire-proof function that multicore mineral insulated cable is identical, can do again length and laying installation convenient, good bending property, be applicable to mobile, vibration place, invest low more cost-savingly than mineral insulated cable again, processing technology is simple; Solved again the fire-resistant branch cable of multicore plastic insulation due to its cable body and divided support body without metal tube or can protection mica insulation, fire resistance can only reach 750 degree 90 minutes, and fire stability is poor; And this kind of cable cannot meet spray and waterproof requirement with a minute support body.Cable of the present invention is by test, cable is under 950 ℃～1000 ℃ flame temperatures, and burning 300min(is than long three times of common fire-resisting cable time), there is very good fire-resistant and anti-flaming function, the switch on during burning rated voltage of cable, neither one fuse or circuit breaker disconnect; Conductor is continuous, and bulb does not extinguish.
Should be understood that this embodiment is only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (5)
1. there is jacketed cable in a novel flexible multicore pre-branch that prevents fires, comprise leader cable (8) and branch cable (9), it is characterized in that described leader cable and branch cable are provided with crimping copper sheathing (10) outward, the outer flame retardant coating (11) that is arranged with successively of described crimping copper sheathing (10), watertight composition (12), refractory insulating layer (13), the outer fireprotection layer (14) that is arranged with of refractory insulating layer (13), outside described fireprotection layer (14), be also arranged with halogen-free and low-smoke flame-retardant polyolefin sheathed (15), in described leader cable (9) and branch cable (9), be provided with many copper conductors (1), the outer mica tape (2) that is surrounded with of described many copper conductors (1).
2. there is jacketed cable in the novel flexible multicore according to claim 1 pre-branch that prevents fires, it is characterized in that being arranged with successively ceramic fireproof composite band (3) and stranding band thermal insulation layer (5) outside described mica tape (2), between described ceramic fireproof composite band (3) and stranding band thermal insulation layer (5), be filled with high-flame-resistance environment-friendly gasket for packing (4).
3. there is jacketed cable in the novel flexible multicore according to claim 2 pre-branch that prevents fires, it is characterized in that outer waterproof fireproofing layer (6) and the fire-retardant overcoat (7) of being arranged with successively of described stranding band thermal insulation layer (5).
4. there is jacketed cable in the novel flexible multicore according to claim 3 pre-branch that prevents fires, it is characterized in that described waterproof fireproofing layer (6) is embossing copper or stainless steel sheath.
5. there is jacketed cable in the novel flexible multicore according to claim 3 pre-branch that prevents fires, it is characterized in that described fire-retardant overcoat (7) is for halogen-free and low-smoke flame-retardant polyolefin sheathed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320393137.9U CN203444807U (en) | 2013-07-03 | 2013-07-03 | Novel flexible multi-core fireproof ready-made-branch cable with sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320393137.9U CN203444807U (en) | 2013-07-03 | 2013-07-03 | Novel flexible multi-core fireproof ready-made-branch cable with sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444807U true CN203444807U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320393137.9U Expired - Fee Related CN203444807U (en) | 2013-07-03 | 2013-07-03 | Novel flexible multi-core fireproof ready-made-branch cable with sheath |
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| Country | Link |
|---|---|
| CN (1) | CN203444807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111696717A (en) * | 2020-06-26 | 2020-09-22 | 寇金臣 | Multi-core branch combination cable |
-
2013
- 2013-07-03 CN CN201320393137.9U patent/CN203444807U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111696717A (en) * | 2020-06-26 | 2020-09-22 | 寇金臣 | Multi-core branch combination cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG WANMA CO., LTD. Free format text: FORMER NAME: ZHEJIANG WANMA CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee after: ZHEJIANG WANMA CO., LTD. Address before: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee before: Zhejiang Wanma Cable Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20190703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |